* {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

blockquote,
button,
dd,
dl,
dt,
fieldset,
form,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
input,
legend,
li,
ol,
p,
pre,
td,
textarea,
th,
ul {
    margin: 0;
    padding: 0;
}

body {
    margin: 0 auto;
    max-width: 1080px;
    min-width: 320px;
    background-color: #fff;
    font-size: 14px;
    font-family: -apple-system, Helvetica, sans-serif;
    line-height: 1.5;
    -webkit-text-size-adjust: 100% !important;
    background-color: #f6f6f6;
    /* height: 2000px; */
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    color: #666;
}

img,
input {
    -webkit-touch-callout: none;
    vertical-align: middle;
}

.clearfix::after {
    content: "";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.header {
    /* position: fixed; */
    /* top: 0; */
    height: 45px;
    z-index: 20px;
}

.header ul li {
    float: left;
    height: 45px;
    background-color: #232326;
    text-align: center;
    line-height: 45px;
}

.header ul li:nth-child(1) {
    width: 8%;
}

.header ul li:nth-child(1) img {
    width: 10px;
}

.header ul li:nth-child(2) {
    width: 10%;
}

.header ul li:nth-child(2) img {
    width: 30px;
}

.header ul li:nth-child(3) {
    width: 57%;
}

.header ul li:nth-child(4) {
    width: 25%;
    background-color: #cd2525;
}

.search_warp {
    position: fixed;
    overflow: hidden;
    width: 100%;
    height: 44px;
    max-width: 1080px;
    min-width: 320px;
    z-index: 999;
}

.search_btn,
.search_login {
    position: absolute;
    top: 0;
    width: 40px;
    height: 44px;
}

.search_btn {
    left: 0;
    text-align: right;
}

.search_btn::after {
    display: inline-block;
    width: 20px;
    height: 18px;
    margin-top: 14px;
    background: url(../images/s-btn.png) no-repeat 0 0 /20px 18px;
    content: '';
}


.search {
    position: relative;
    height: 30px;
    margin: 7px 50px 0;
    line-height: 44px;
    border-radius: 15px;
    background-color: #fff;
}

.search .jd_icon {
    position: absolute;
    top: 8px;
    left: 13px;
    width: 20px;
    height: 15px;
    background: url(../images/jd.png) no-repeat 0 0 /20px 15px;
}

.search .jd_icon::after {
    position: absolute;
    top: 0;
    right: -8px;
    height: 15px;
    width: 1px;
    background-color: #ccc;
    content: '';
}

.search .search_icon {
    position: absolute;
    top: 8px;
    left: 50px;
    width: 15px;
    height: 15px;
    background: url(../images/jd-sprites.png) no-repeat -83px 0 /200px 200px;
}

.search input {
    position: absolute;
    top: 8px;
    left: 80px;
    width: 60%;
    border: 0;
    outline: none;
}

.search_login {
    right: 0;
    color: #fff;
    line-height: 44px;
}

.main-content {
    position: relative;
    width: 100%;
}

.slider-bg {
    position: absolute;
    top: 0;
    width: 100%;
    height: 150px;
    background: -webkit-linear-gradient(top left, #f1503b, #c82519 50%);
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
}

.slider {
    position: relative;
    top: 0;
    width: 100%;
    height: 217px;
    /* height: 10rem; */
    /* margin-bottom: 50px; */
    max-width: 1080px;
    min-width: 320px;
}

.slider li {
    position: absolute;
    top: 50px;
    width: 100%;
}

.slider a {
    position: relative;
    display: block;
    margin: 0 auto;
    width: calc(100% - 10px);
}

.slider a img {
    width: 100%;
    border-radius: 5px;
}

.brand {
    width: calc(100% - 10px);
    margin: 0 auto;
}

.brand>div {
    float: left;
    width: calc(100% / 3);
}

.brand>div a {
    display: block;
}

.brand>div a img {
    width: 100%;
}

.nav {
    padding: 10px 0;
}

.nav a {
    float: left;
    width: 20%;
    text-align: center;
}

.nav a img {
    width: 40px;
    height: 40px;
    margin: 10px 0;
}

.news {
    margin-top: 10px;
}

.news a {
    float: left;
    width: 25%;
    border-left: 1px solid #ccc;
}

.news a:nth-child(1) {
    width: 50%;
    border: 0;
}

.news a img {
    width: 100%;
}

/* floor */
.floor-ietm {
    margin: 10px auto 0;
    width: calc(100% - 20px);
}

.floor-ietm a {
    float: left;
    position: relative;
    width: 25%;
    height: 120px;
    background: url(../upload/floor-bg1.jpg.dpg) no-repeat;
    background-size: 87px 120px;
    color: #fff;
    font-size: 12px;
    line-height: 14px;
    text-align: center;
}

.floor-ietm a div {
    margin: 11px;
    width: 65px;
    height: 65px;
}

.floor-ietm a div img {
    width: 100%;
}

/* floor-content */
.floor-content {
    width: calc(100% - 20px);
    margin: 10px auto;
    background-color: #fff;
    border-radius: 10px;
}

.floor-content>div {
    float: left;
    width: 25%;
}

.floor-content .hd {
    padding-top: 10px;
    padding-left: 10px;
}

.floor-content .hd h2 {
    font-size: 16px;
}

.floor-content .hd p {
    font-size: 12px;
    color: #666771;
}

.floor-content .bd {
    padding-bottom: 10px;
    text-align: center;
}

.floor-content .bd .pic {
    display: inline-block;
    width: 60px;
    height: 60px;
    margin: 0 10px;
}
.floor-content .bd .pic img{
    width: 100%;
}
.floor-content>div:nth-child(-n+2) {
    width: 50%;
}

/* footer区域 开始 */
footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 55px;
    background-color: #fff;
}

footer div {
    float: left;
    width: 20%;
    text-align: center;
    /* height: 45px; */
}

footer div a {
    display: inline-block;
    width: 60px;
}

footer div a img {
    width: 100%;
}